PreSonus ATOM 16-pad USB MIDI Controller, Studio One Artist

 Groove Production Hardware Control Surface with 16 Velocity- and Pressure-sensitive Pads, 4 Rotary Encoders, Switchable Polyphonic Aftertouch/Channel Pressure/MIDI CC Message Modes, Selectable Pad Velocity Curves and Pressure Thresholds, 8 Pad Banks, and USB 2.0 Connectivity